ArtistStudio.com has been selling art via the web for more than a year now.
You might want to get in touch with chris orrobert and swap information.

>I'm working with an organization that is trying to guage the effectiveness>of selling art pieces on-line.>
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Malcolm T. Upton
8901 Normandale #1004 Ft. Worth, TX 76116
817/560-2316 malcolmhttp://www.uptons.net/
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"Once we thought if we sat a million monkeys down at a million typewriters
we'd get the works of Shakespeare. Now that we have the Web, we know this
isn't true." --anonymous